CA2178468A1 - Differential Conductivity Hemodynamic Monitor - Google Patents
Differential Conductivity Hemodynamic MonitorInfo
- Publication number
- CA2178468A1 CA2178468A1 CA 2178468 CA2178468A CA2178468A1 CA 2178468 A1 CA2178468 A1 CA 2178468A1 CA 2178468 CA2178468 CA 2178468 CA 2178468 A CA2178468 A CA 2178468A CA 2178468 A1 CA2178468 A1 CA 2178468A1
- Authority
- CA
- Canada
- Prior art keywords
- liquid
- connection
- conductivity cell
- electrical current
- branches
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- External Artificial Organs (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The presence of air bubbles entrained in a liquid flowing through a tube is detected flowing the liquid through a conduit which comprises a conductivity cell with a continuous path configuration. An electrical current is induced in the liquid in the conductivity cell. The electrical current in the liquid in the conductivity cell is sensed and interpreted, a decrease in the electrical current being indicative of the presence of an air bubble in the liquid. The conductivity cell comprises an upstream connection, a downstream connection, and two branches connecting the upstream connection to the downstream connection with a continuous path configuration from the upstream connection to the downstream connection through one of the two branches and returning to the upstream connection through the other one of the two branches.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/472,268 US5631552A (en) | 1992-09-30 | 1995-06-07 | Hemodynamic monitor for detecting air bubbles |
US08/472,268 | 1995-06-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2178468A1 true CA2178468A1 (en) | 1996-12-08 |
CA2178468C CA2178468C (en) | 2000-09-05 |
Family
ID=23874811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2178468 Expired - Fee Related CA2178468C (en) | 1995-06-07 | 1996-06-06 | Differential conductivity hemodynamic monitor |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA2178468C (en) |
-
1996
- 1996-06-06 CA CA 2178468 patent/CA2178468C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA2178468C (en) | 2000-09-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |